a = int(input())
 
if a>=400 and a<600:print(8)
elif a>=600 and a<800:print(7)
elif a>=800 and a<1000:print(6)
elif a>=1000 and a<1200:print(5)
elif a>=1200 and a<1400:print(4)
elif a>=1400 and a<1600:print(3)
elif a>=1600 and a<1800:print(2)
elif a>=1800 and a<2000:print(1) a = int(input()) a int(input()) int input() input if a>=400 and a<600:print(8)
elif a>=600 and a<800:print(7)
elif a>=800 and a<1000:print(6)
elif a>=1000 and a<1200:print(5)
elif a>=1200 and a<1400:print(4)
elif a>=1400 and a<1600:print(3)
elif a>=1600 and a<1800:print(2)
elif a>=1800 and a<2000:print(1) a>=400 and a<600 a>=400 a 400 a<600 a 600 elif a>=600 and a<800:print(7) a>=600 and a<800 a>=600 a 600 a<800 a 800 elif a>=800 and a<1000:print(6) a>=800 and a<1000 a>=800 a 800 a<1000 a 1000 elif a>=1000 and a<1200:print(5) a>=1000 and a<1200 a>=1000 a 1000 a<1200 a 1200 elif a>=1200 and a<1400:print(4) a>=1200 and a<1400 a>=1200 a 1200 a<1400 a 1400 elif a>=1400 and a<1600:print(3) a>=1400 and a<1600 a>=1400 a 1400 a<1600 a 1600 elif a>=1600 and a<1800:print(2) a>=1600 and a<1800 a>=1600 a 1600 a<1800 a 1800 elif a>=1800 and a<2000:print(1) a>=1800 and a<2000 a>=1800 a 1800 a<2000 a 2000 a = int(input()) int(input()) a
a = int(input())
 
if a>=400 and a<600:print(8)
elif a>=600 and a<800:print(7)
elif a>=800 and a<1000:print(6)
elif a>=1000 and a<1200:print(5)
elif a>=1200 and a<1400:print(4)
elif a>=1400 and a<1600:print(3)
elif a>=1600 and a<1800:print(2)
elif a>=1800 and a<2000:print(1)